COMMELL LV-66A - Manual (Page 32)

LV-66A User’s Manual Hardware Setup
32
2.14 <Serial Port Jumper Setting >
The board provides three RS232 serial ports, with jumper selectable RS422/485 for
CN_COM2.
Connector: CN_COM2
Type: 10-pin (5 x 2) header, pitch=2.54mm
Pin Description Pin Description
1 DCD/422TX-/485- 2 RXD/422TX+/485+
3 TXD/422RX+
4 DTR/422RX-
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N/C
JCSEL1 JCSEL2
RS-232
RS-485
RS-422
1
2
11
12
1
2
11
12
1
2
11
12
1
2
5
6
1
2
5
6
1
2
5
6